<template>
  <!-- 放置一个图标 -->
  <div style="display: inline-block">
    <svg-icon
      :icon-class="isfull ? 'exit-fullscreen' : 'fullscreen'"
      class="fullscreen"
      @click="taggleScreen"
    />
  </div>
</template>

<script>
import screenfull from "screenfull";
export default {
  name: "ScreenFull",
  data() {
    return {
      isfull: false,
    };
  },
  created() {
    // ESC会改变当前的全屏状态
    // screenfull是插件，它自带事件监听 on
    // screenfull.isFullscreen ：插件自带的属性，表示当前是否处于全屏状态
    screenfull.on("change", () => {
      console.log("当前是否是全屏", screenfull.isFullscreen);
      this.isfull = screenfull.isFullscreen;
    });
  },
  methods: {
    taggleScreen() {
      screenfull.toggle();
      this.isfull = !this.isfull;
    },
  },
};
</script>

<style lang="scss" scoped>
.fullscreen {
  width: 20px;
  height: 20px;
  color: #fff;
  cursor: pointer;
}
</style>